CVE-2026-102031CWE-78command-injection

CVE-2026-102031

Critical · published October 14, 2026

CVSS v3.1
9.8
EPSS
2%
Percentile
81.5
In the wild
Unconfirmed
What it is

An OS Command Injection vulnerability in TACACS of Juniper Networks Junos OS Evolved allows a low-privileged TACACS+-authenticated user to execute commands with root privileges when periodic TACACS+ authorization-refresh is enabled.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M
EPSS
0.02098 · 81.5th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-14T21:17Z
References (1)
https://supportportal.juniper.net/JSA112250 · [email protected]
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 2%
    epss
  • 14 OCT 16:49Z
    Junos OS Evolved: A low-privileged TACACS+ user causes root command execution when authorization refresh is enabled
    cvelistv5
  • 14 OCT 16:49Z
    Junos OS Evolved: A low-privileged TACACS+ user causes root command execution when authorization refresh is enabled
    cvelistv5